发明名称 Data transfer control device, information storage medium and electronic equipment
摘要 The objective of the present invention is to provide a data transfer control device, information storage medium, and electronic equipment that can relieve the inconveniences caused whenever a reset that clears node topology information occurs. If a bus reset occurs during a data transfer period in a data transfer control device in accordance with the IEEE 1394 standard, and also the content of ORBs before and after the bus reset is the same, data transfer restarts from a resumption at the point at which the bus reset occurred, thus preventing duplicate printing in a printer. Whenever a bus reset occurs during a data transfer period, the continuation flag is set to on. The first command block ORB comprising a print command that transferred in after the bus reset is used in the comparison with the pre-bus-reset ORB. When no ACK is returned from the initiator because of a bus reset, a transition to a dead state occurs. The part of transfer data from a scanner that has not yet been transferred to the initiator at point at which the bus reset occurred is retained without being destroyed.
申请公布号 US2001042141(A1) 申请公布日期 2001.11.15
申请号 US20010737760 申请日期 2001.03.23
申请人 MATSUNAGA KOSUKE;KANAI HIROYUKI;FUJITA SHINICHIRO 发明人 MATSUNAGA KOSUKE;KANAI HIROYUKI;FUJITA SHINICHIRO
分类号 G06F13/38;G06F13/42;H04L12/28;H04L12/64;(IPC1-7):G06F3/00 主分类号 G06F13/38
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